Fire-alarm



(No Model.)

, A. BICHET 8v R. W. WHITNEY.

FIRE ALARM.

110.463,570. Patented Nov. 17,1891.

. lk m i water-works of a city.

NITED STATES PATENT OFFICE.

ALPHONSE BIOHET ANDROBERT 1V. VHITNEY, OF FLORENCE, KANSAS,

FIRE-ALARM.

SPECIFICATION forming part of Letters Patent N0. 463,570, dated November17, 1891.

Application-filed February 19, 1891. Serial No. 382,021. (No modelJ. l

To @ZZ who-m it may concern.-

Be it known that we, ALPHONSE BICHET and ROBERT W. WHITNEY, citizens ofthe United l States, residing at Florence, in the county of Marion,State of Kansas, have invented certain new and useful Improvements inFire- Alarms, of which the following is a specification, reference beinghad therein to the accompanying drawings.

This invention relates to certain new and useful improvements infire-alarms; and it has for its objects, among others, to provide asimple, cheap, and efficient device of this character in which the alarmis sounded by the action of waterupon a turbine wheel, the iiow of thewater being governed by the armature of an electro-magnet to which thevalvestem is affixed.

Other objects and advantages of the invention will hereinafter appear,and the novel features thereof will be specifically defined by theappended claim.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which- Figure l is a diagrammatic view with partsbroken away, showing my invention. Fig. 2 is a front elevation of thealarm.

Like letters of reference indicate like parts in both views where theyoccur.

Referring now to the details of the drawings by letter, A designates anelectro-magnet of known construction suitably supported in any desiredposition, and B is its armature connected with or affixed to thevalvestem O, to which is afiixed a valve, (not shown,) which controlsthe flow of water through the pipe D, which may be a pipe connected withany source of supply-as, for instance, the This stem is guided in itsmovements by suitable guide-arm a, which rises f rom the valve`case inwhich the valve is located, as seen in Fig. l. This pipe D communicateswith and is adapted to supply water to the casing E, in which isarranged a turbine Wheel of any known construction, the shaft VF ofwhich is journaled in a suitable bearing or box h at one end and at theother end in a post or upright G,which may be arranged at any desiredpoint or place. The casing of the wheel should be provided with asuitable outlet, as c.

On the end of the shaft F is a disk H, provided with a crank-pin d, andto this crankpin is attached the pitman l, the other end of which ispivotally connected with a vertical rod or arm e, which is free to movevertically in suitable guides f on the post, and at its upper endconnected to the bell-hammer arm J between its ends, the said hammer-armbeing pivoted at one end to a bracket g on the side of the post and atits other end carrying a bell-hammer 7L, adapted to strike the bell orgong K, which is carried by the horizontal arm L on the upper end of thepost, as seen in Fig. 2.

M is a post or upright arranged at the desired place and to which a boxis affixed in the usual manner, it being of course understood that thisis but one of the many boxes located in a city, and these boxes numberedaccording to the ward or section of the city in which they are located.This box is of the usual construction, being provided with a lever Z,which, when a fire occurs, is to be turned till it engages one of thecontact-pins in the box, and thus closes or completes the circuit andattracts the armature of the magnet, and the attraction of the armatureopens the valve t and allows the water toflow through the pipe into thewheel-casing and starts the wheel, and this revolves the shaft andthrough the medium of the crank, pin, and connections sounds an alarm.

N shows the connection from the alarmbox to the magnet, and N theconnection from the magnet to the batteries O, the batteries andalarm-box being grou nded,as shown in Fig. l.

Normally the valve is closed and the circuit broken. As soon as thecircuit is closed the valve is opened, the Water Hows, thewheelrevolves, the crank and pin revolve, and the alarm is sounded throughthe intervening mechanism, as above described.

The apparatus is simple, efficient, and positive in its operation.

The combination, with the turbine wheel,

IOO

the supply-pipe, and the electrically-cm1- Intestmony whereof we aixoursglmtures tlolled valve, of the crank-disk on the shaft in presenceof two Witnesses. of th@ turbine Wheel, the pitman, the verti- ALPHONSEBICHET. cally-movable arm, the pivoted hammer-arm, ROBT. XV. XVI-IITNEY.

5 the latter being connected with the said arm, \Vit11esses:

md the bell arranged to be struck bythe THOS. MGRRISON,

hammer, as set forth. T. P. ALEXANDER.

